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1. 发明授权

US07239784B2 Optical fiber, method for manufacturing same and optical transmission channel 有权
标题翻译：光纤，制造方法及光传输通道
公开(公告)号：US07239784B2
公开(公告)日：2007-07-03
申请号：US11335467
申请日：2006-01-20
申请人： Shuhei Hayami , Mitsuhiro Kawasaki , Yohei Uchida
发明人： Shuhei Hayami , Mitsuhiro Kawasaki , Yohei Uchida
IPC分类号： G02B6/02
CPC分类号： G02B6/03688 , C03B37/01413 , C03B2201/12 , C03B2201/31 , C03B2203/22 , C03B2203/23 , C03B2203/36 , G02B6/02019 , G02B6/02242 , G02B6/02266 , G02B6/03605 , G02B6/03666
摘要： The present invention provides an optical fiber of which a zero dispersion wavelength falls within a range of between 1,250 nm and 1,350 nm inclusive, transmission loss at 1,550 nm is equal to or less than 0.185 dB/km, chromatic dispersion at 1,550 nm is within the range of 19±1 ps/nm·km, a dispersion slope at 1,550 nm is equal to or less than 0.06 ps/nm2·km, an effective area Aeff is equal to or more than 105 μm2, a cable cutoff wavelength λcc is equal to or less than 1,530 nm, polarization mode dispersion is equal to or less than 0.1 ps/km1/2, and a loss when the optical fiber is wound on a mandrel having an outer diameter of 20 mm is equal to or less than 10 dB/m.
摘要翻译：本发明提供一种零色散波长落在1,250nm和1,350nm之间的光纤，其中在1,550nm处的传输损耗等于或小于0.185dB / km，在1,550nm处的色散在范围为19±1ps / nm.km，1,550nm处的色散斜率等于或小于0.06ps / nm 2·km，有效面积A < 等于或大于105μm2，电缆截止波长λcc等于或小于1530nm，偏振模色散等于或小于0.1ps / km 1/2，当光纤缠绕在外径为20mm的心轴上时的损耗为10dB / m以下。

2. 发明申请

US20120279258A1 METHOD OF DEHYDRATING AND SINTERING POROUS PREFORM FOR OPTICAL FIBER AND DEHYDRATION-SINTERING FURNACE 审中-公开
标题翻译：用于光纤和脱硫烧结炉的脱水和烧结多孔预成型方法
公开(公告)号：US20120279258A1
公开(公告)日：2012-11-08
申请号：US13555561
申请日：2012-07-23
申请人： Yoshinori ISHIDA , Seiichi Shinada , Mitsuhiro Kawasaki
发明人： Yoshinori ISHIDA , Seiichi Shinada , Mitsuhiro Kawasaki
IPC分类号： C03B37/07
CPC分类号： C03B37/01446 , C03B37/0146
摘要： A dehydration-sintering furnace includes a muffle tube that accommodates therein the porous preform, a heater that heats the porous preform from outside of the muffle tube, a furnace body that accommodates the heater at an outer periphery of the muffle tube. When a gas required for dehydrating and sintering the porous preform is supplied in the muffle tube, and a pressure in the muffle tube is measured, an average value of the pressure in the muffle tube P0 and a standard deviation of the pressure in the muffle tube σ0 are controlled to satisfy a relation P0−3×σ0>0.
摘要翻译：脱水烧结炉包括容纳多孔预成型件的马弗管，从马弗管外部加热多孔预成型件的加热器，在马弗管的外周容纳加热器的炉体。当在马弗管中提供用于脱水和烧结多孔预型件所需的气体时，测量马弗管中的压力时，马弗管P0中的压力的平均值和马弗管中的压力的标准偏差＆sgr; 0被控制以满足关系P0-3×＆sgr; 0> 0。

3. 发明授权

US07095940B2 Optical fiber, method for manufacturing same and optical transmission channel 有权
公开(公告)号：US07095940B2
公开(公告)日：2006-08-22
申请号：US10674338
申请日：2003-10-01
申请人： Shuhei Hayami , Mitsuhiro Kawasaki , Yohei Uchida
发明人： Shuhei Hayami , Mitsuhiro Kawasaki , Yohei Uchida
IPC分类号： G02B6/00
CPC分类号： G02B6/03688 , C03B37/01413 , C03B2201/12 , C03B2201/31 , C03B2203/22 , C03B2203/23 , C03B2203/36 , G02B6/02019 , G02B6/02242 , G02B6/02266 , G02B6/03605 , G02B6/03666
摘要： The present invention provides an optical fiber of which a zero dispersion wavelength falls within a range of between 1,250 nm and 1,350 nm inclusive, transmission loss at 1,550 nm is equal to or less than 0.185 dB/km, chromatic dispersion at 1,550 nm is within the range of 19±1 ps/nm·km, a dispersion slope at 1,550 nm is equal to or less than 0.06 ps/nm2·km, an effective area Aeff is equal to or more than 105 μm2, a cable cutoff wavelength λcc is equal to or less than 1,530 nm, polarization mode dispersion is equal to or less than 0.1 ps/km1/2, and a loss when the optical fiber is wound on a mandrel having an outer diameter of 20 mm is equal to or less than 10 dB/m.

4. 发明申请

US20050089289A1 Optical fiber, method for manufacturing same and optical transmission channel 有权
标题翻译：光纤，制造方法及光传输通道
公开(公告)号：US20050089289A1
公开(公告)日：2005-04-28
申请号：US10674338
申请日：2003-10-01
申请人： Shuhei Hayami , Mitsuhiro Kawasaki , Yohei Uchida
发明人： Shuhei Hayami , Mitsuhiro Kawasaki , Yohei Uchida
IPC分类号： C03B37/014 , G02B6/036 , G02B6/22
CPC分类号： G02B6/03688 , C03B37/01413 , C03B2201/12 , C03B2201/31 , C03B2203/22 , C03B2203/23 , C03B2203/36 , G02B6/02019 , G02B6/02242 , G02B6/02266 , G02B6/03605 , G02B6/03666
摘要： The present invention provides an optical fiber of which a zero dispersion wavelength falls within a range of between 1,250 nm and 1,350 nm inclusive, transmission loss at 1,550 nm is equal to or less than 0.185 dB/km, chromatic dispersion at 1,550 nm is within the range of 19±1 ps/nm·km, a dispersion slope at 1,550 nm is equal to or less than 0.06 ps/nm2·km, an effective area Aeff is equal to or more than 105 μm2, a cable cutoff wavelength λcc is equal to or less than 1,530 nm, polarization mode dispersion is equal to or less than 0.1 ps/km1/2, and a loss when the optical fiber is wound on a mandrel having an outer diameter of 20 mm is equal to or less than 10 dB/m.
摘要翻译：本发明提供一种零色散波长落在1,250nm和1,350nm之间的光纤，其中在1,550nm处的传输损耗等于或小于0.185dB / km，在1,550nm处的色散在范围为19±1ps / nm.km，1,550nm处的色散斜率等于或小于0.06ps / nm 2·km，有效面积A < 等于或大于105μm2，电缆截止波长λcc等于或小于1530nm，偏振模色散等于或小于0.1ps / km 1/2，当光纤缠绕在外径为20mm的心轴上时的损耗为10dB / m以下。

5. 发明申请

US20100294002A1 OPTICAL FIBER PREFORM MANUFACTURING METHOD 审中-公开
标题翻译：光纤预制件制造方法
公开(公告)号：US20100294002A1
公开(公告)日：2010-11-25
申请号：US12780347
申请日：2010-05-14
申请人： Masahide ITO , Jun TERADA , Shinji YOKOYAMA , Mitsuhiro KAWASAKI
发明人： Masahide ITO , Jun TERADA , Shinji YOKOYAMA , Mitsuhiro KAWASAKI
IPC分类号： C03B37/01
CPC分类号： C03B37/01446
摘要： The present invention provides a method for manufacturing an optical fiber preform, which provides an optical fiber with stable transmission loss characteristics, and improves manufacturing efficiency. The method for manufacturing an optical fiber preform comprises dehydrating the optical fiber soot preform by lowering the optical fiber soot preform within the muffle tube and passing through a heating region, pulling up the dehydrated optical fiber soot preform to the predetermined position, and sintering the optical fiber soot preform by lowering the optical fiber soot preform again within the muffle tube and passing through the heating region where temperature of the heating region is higher than temperature of the heating region in dehydrating; wherein A≦B is satisfied where A is pull-up speed (mm/minute) of the optical fiber soot preform during the pulling up and B is gas flow rate (mm/minute) within the muffle tube at room temperature during the pulling up. Furthermore, 1.5×A≦B is satisfied.
摘要翻译：本发明提供一种光纤预制棒的制造方法，其提供具有稳定的传输损耗特性的光纤，并提高制造效率。制造光纤预制棒的方法包括：通过将马弗管内的光纤烟灰预制件下降并通过加热区域，将脱水的光纤烟灰预制件拉出到预定位置，并将光学玻璃烧结通过在马弗管内再次降低光纤烟灰预制件并通过加热区域的温度高于脱水加热区域的温度的加热区域，其中A＆NlE; B满足拉伸时光纤烟灰预成型件的上拉速度（mm /分钟），B为升温期间室温下马弗管内的气体流量（mm /分钟）。此外，满足1.5×A＆nlE; B。

6. 发明申请

US20080202166A1 METHOD OF DEHYDRATING AND SINTERING POROUS PREFORM FOR OPTICAL FIBER AND DEHYDRATION-SINTERING FURNACE 审中-公开
标题翻译：用于光纤和脱硫烧结炉的脱水和烧结多孔预成型方法
公开(公告)号：US20080202166A1
公开(公告)日：2008-08-28
申请号：US11678381
申请日：2007-02-23
申请人： Yoshinori Ishida , Seiichi Shinada , Mitsuhiro Kawasaki
发明人： Yoshinori Ishida , Seiichi Shinada , Mitsuhiro Kawasaki
IPC分类号： C03B5/00
CPC分类号： C03B37/01446 , C03B37/0146
摘要： A dehydration-sintering furnace includes a muffle tube that accommodates therein the porous preform, a heater that heats the porous preform from outside of the muffle tube, a furnace body that accommodates the heater at an outer periphery of the muffle tube. When a gas required for dehydrating and sintering the porous preform is supplied in the muffle tube, and a pressure in the muffle tube is measured, an average value of the pressure in the muffle tube P0 and a standard deviation of the pressure in the muffle tube σ0 are controlled to satisfy a relation P0−3×σ0>0.
摘要翻译：脱水烧结炉包括容纳多孔预成型件的马弗管，从马弗管外部加热多孔预成型件的加热器，在马弗管的外周容纳加热器的炉体。当在马弗管中提供用于脱水和烧结多孔预型件所需的气体，并测量马弗管中的压力时，马弗管P 0中的压力的平均值和马弗炉中的压力的标准偏差管σ0被控制以满足关系P 0 -3 xσ0> 0。

7. 发明申请

US20060198591A1 Optical fiber, method for manufacturing same and optical transmission channel 有权
标题翻译：光纤，制造方法及光传输通道
公开(公告)号：US20060198591A1
公开(公告)日：2006-09-07
申请号：US11335467
申请日：2006-01-20
申请人： Shuhei Hayami , Mitsuhiro Kawasaki , Yohei Uchida
发明人： Shuhei Hayami , Mitsuhiro Kawasaki , Yohei Uchida
IPC分类号： G02B6/036
CPC分类号： G02B6/03688 , C03B37/01413 , C03B2201/12 , C03B2201/31 , C03B2203/22 , C03B2203/23 , C03B2203/36 , G02B6/02019 , G02B6/02242 , G02B6/02266 , G02B6/03605 , G02B6/03666
摘要： The present invention provides an optical fiber of which a zero dispersion wavelength falls within a range of between 1,250 nm and 1,350 nm inclusive, transmission loss at 1,550 nm is equal to or less than 0.185 dB/km, chromatic dispersion at 1,550 nm is within the range of 19±1 ps/nm·km, a dispersion slope at 1,550 nm is equal to or less than 0.06 ps/nm2·km, an effective area Aeff is equal to or more than 105 μm2, a cable cutoff wavelength λcc is equal to or less than 1,530 nm, polarization mode dispersion is equal to or less than 0.1 ps/km1/2, and a loss when the optical fiber is wound on a mandrel having an outer diameter of 20 mm is equal to or less than 10 dB/m.
摘要翻译：本发明提供一种零色散波长落在1,250nm和1,350nm之间的光纤，其中在1,550nm处的传输损耗等于或小于0.185dB / km，在1,550nm处的色散在范围为19±1ps / nm.km，1,550nm处的色散斜率等于或小于0.06ps / nm 2·km，有效面积A < 等于或大于105μm2，电缆截止波长λcc等于或小于1530nm，偏振模色散等于或小于0.1ps / km 1/2，当光纤缠绕在外径为20mm的心轴上时的损耗为10dB / m以下。

8. 发明授权

US06901195B2 Optical fiber and an optical transmission system using the optical fiber 有权
标题翻译：光纤和使用光纤的光传输系统
公开(公告)号：US06901195B2
公开(公告)日：2005-05-31
申请号：US10447269
申请日：2003-05-29
申请人： Fumio Takahashi , Mitsuhiro Kawasaki
发明人： Fumio Takahashi , Mitsuhiro Kawasaki
IPC分类号： G02B6/036 , G02B6/02 , H04J14/02
CPC分类号： G02B6/03644 , C03C13/00 , G02B6/02014 , G02B6/02223 , G02B6/02271 , G02B6/0228
摘要： An optical fiber suitable for the WDM transmission in the wavelength bands of 1.31 μm and 1.55 μm is provided. An optical fiber is characterized by a zero dispersion wavelength of longer than 1330 nm and shorter than 1430 nm, a dispersion of not less than 6 ps/nm/km and not more than 15 ps/nm/km at a wavelength of 1550 nm, a ratio of a dispersion to a dispersion slope of not less than 200 nm and not mare than 400 nm at a wavelength of 1550 nm, a dispersion of not more than −1 ps/nm/km and not less than−8 ps/mn/km at 1300 nm, and a cutoff wavelength of 1300 nm or shorter.
摘要翻译：提供了适用于波长1.31μm和1.55μm的WDM传输的光纤。光纤的特征在于长于1330nm且小于1430nm的零色散波长，1550nm波长处的色散不小于6ps / nm / km且不大于15ps / nm / km，在1550nm波长处的色散与色散斜率之比不小于200nm而不是400nm，色散不大于-1ps / nm / km且不小于-8ps / mn / km，1300nm的截止波长或1300nm以下的截止波长。

9. 发明授权

US06665482B2 Optical fiber and optical transmission line 有权
标题翻译：光纤和光传输线
公开(公告)号：US06665482B2
公开(公告)日：2003-12-16
申请号：US10072996
申请日：2002-02-12
申请人： Mitsuhiro Kawasaki , Yohei Uchida , Hiroaki Oonuma
发明人： Mitsuhiro Kawasaki , Yohei Uchida , Hiroaki Oonuma
IPC分类号： G02B602
CPC分类号： G02B6/03633 , G02B6/02019 , G02B6/02266 , G02B6/02271 , G02B6/0228 , G02B6/0286
摘要： The optical fiber includes a center core portion, a side core portion and clad portion, which has a dispersion value of 14-20 ps/nm/km at a wavelength of 1550 nm, a dispersion slope of 0.05-0.08 ps/nm2/km at a wavelength of 1550 nm and a transmission attenuation of 0.2 dB/km or less at a wavelength of 1550 nm, wherein the relative refractive index difference &Dgr;1 between the center core portion and the clad portion is 0.25-0.50%, the relative refractive index difference &Dgr;2 between the side core portion and the clad portion is 0.05-0.30%, an inequality &Dgr;2
摘要翻译：光纤包括中心芯部分，侧芯部分和包层部分，其在1550nm的波长处具有14-20ps / nm / km的色散值，色散斜率为0.05-0.08ps / nm 2 波长为1550nm的波长λ/ km，波长1550nm的透射衰减为0.2dB / km以下，其中，中心纤芯部与包层部之间的相对折射率差Δ1为0.25〜0.50％，侧芯部与包层部之间的相对折射率差Δ2为0.05-0.30％，满足不等式Delta2

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